Body Adiposity Index


The BAI calculator allows you to calculate the fat percentage in your body. It is a new alternative to Body Mass Index (BMI) calculation.

Calculator of Body Adiposity Index (BAI)

Formula of Body Adiposity Index

BAI = ( HC / (HM)1.5 ) – 18

  • BAI = Body Adiposity Index
  • HC = Hip Circumference in Centimeter
  • HM = Height in Meter
BAI Classifications for Men
Age (years)UnderweightHealthyOverweightObese
20 – 39Less than 8%8% to 21%21% to 26%Greater than 26%
40 – 59Less than 11%11% to 23%23% to 29%Greater than 29%
60 – 79Less than 13%13% to 25%25% to 31%Greater than 31%
BAI Classifications for Women
Age (years)UnderweightHealthyOverweightObese
20 – 39Less than 21%21% to 33%33% to 39%Greater than 39%
40 – 59Less than 23%23% to 35%35% to 41%Greater than 41%
60 – 79Less than 25%25% to 38%38% to 43%Greater than 43%